BL-42D2-0344 LIGHTING SCIENCE GROUP CORPORATION, BL-42D2-0344 Datasheet - Page 2

• Manufacturer Part Number: BL-42D2-0344
• Description: LED ARRAY WHITE 0.80 SMD
• Manufacturer: LIGHTING SCIENCE GROUP CORPORATION

Specifications of BL-42D2-0344

• Color: White, Cool
• Current - Test: 1.4A
• Luminous Flux @ Current - Test: 120lm
• Current - Max: 1.4A
• Lumens @ Current - Max: 120lm
• Lumens/watt @ Current - Test: 20lm/W
• Voltage - Forward (vf) Typ: 4.3V
• Wavelength: 5500K
• Lens Style/size: Round with Domed Top
• Viewing Angle: 120°
• Mounting Type: Surface Mount
• Package / Case: Round - 0.800" Dia x 0.160" H (20.32mm x 4.06mm)
• Illumination Color: Cool White
• Power Consumption: 5.9 W
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 521-1026-2

Technical Data
P/N BL-42D2-0344
Note 1. Optical and electrical specifications are given for the specified drive current at a 25 C junction temperature.
Note 2. Operating temperature is for LED die junction. Lower temperatures improve lumen maintenance.
Light Output Characteristics
Luminous Flux vs. Current
Luminous Flux vs. Current
When operating at drive currents higher than test currents indicated do not exceed maximum recommended junction temperature.
Higher drive currents increase luminous flux but also increase thermal load. Without proper heat sinking, lower efficacy (lumens per
watt) and lower lumen maintenance may result. For dimming significantly below test currents indicated, pulse width modulation is
recommended for maximum consistency and stability of light properties.
Luminous Flux vs. Junction Temperature
Light output from LED die will decrease with increasing junction temperature. This effect is particularly acute for die in the 580 to 750
nm range. As a result it is recommended that the LED array heat sink design be optimized to maintain the die junction temperature as
low as possible.
Operating Temperature
Assembly Temperature :
Color Rendering Index :
Storage Temperature :
200
180
160
140
120
100
about your design, contact Lamina at 800.808.5822 or 609.265.1401 or visit www.laminaceramics.com.
80
60
40
20
Thermal Resistance :
0
To see how you can realize all these design benefits, to request a sample, or to speak with an engineer
Color Temperature :
0
Luminous Flux
ESD Sensitivity :
Test Current :
200
Voltage
Power
400
BL-4000 White Typical Flux vs. Forward Current
1
1
:
600
:
1
:
800
25C Junction Temp
2
Forward Current (mA)
:
1000
1200
Symbol
HBM
CCT
CRI
Φ
V
T
T
I
P
1400
F
R
F
V
J
1600
1800
2,000
4000
2000
Min
3.6
-40
-40
88
62
-
-
-
2200
Relative Luminous Flux vs. Temperature
Typical
5500
1400
120
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
4.3
5.9
2.5
78
-20
BL-4000 5500ºK White Relative Flux vs. Tempertature
0
250ºC, < 5 sec.
20
10000
1600
Max
125
100
5.0
3.2
-
-
-
Junction Temperature (C)
40
60
80
100
ºC/W
Unit
mA
ºC
ºC
ºC
ºK
W
lm
V
V
120
140
2